Yamaha F50A Manuals

Manuals and User Guides for Yamaha F50A. We have 4 Yamaha F50A manuals available for free PDF download: Service Manual, Owner's Manual

Yamaha F50A Service Manual

Yamaha F50A Service Manual (403 pages)

Brand: Yamaha | Category: Outboard Motor | Size: 23.76 MB

Table of Contents

Table of Contents

3
- Important Information
  2
- General Information
  5
  - How to Use this Manual
    6
    
    Manual Format
    6
    
    Symbols
    7
  - Safety While Working
    8
    
    Fire Prevention
    8
    
    Ventilation
    8
    
    Self-Protection
    8
    
    Parts, Lubricants, and Sealants
    8
    
    Good Working Practices
    9
    
    Disassembly and Assembly
    9
  - Identification
    10
    
    Applicable Models
    10
    
    Serial Number
    10
  - Features and Benefits
    11
    
    Newly Designed Four Carburetors
    11
    
    CDI Unit with Microcomputer
    12
    
    Lower Unit
    13
    
    Technical Tips
    15
    
    Carburetor
    15
  - Technical Tips
    17
    
    Acceleration Pump
    20
    
    Ignition System
    22
    
    Ignition Timing Control
    24
    
    Power Trim and Tilt
    27
  - Propeller Selection
    37
    
    Propeller Size
    37
    
    Selection
    37
  - Predelivery Checks
    38
    
    Checking the Fuel System
    38
    
    Checking the Gear Oil
    38
    
    Checking the Engine Oil
    38
    
    Checking the Battery
    38
  - Info
    38
    
    Checking the Outboard Motor Mounting Position
    39
    
    Checking the Remote Control Cables
    39
    
    Checking the Steering Wheel/Tiller Handle
    39
    
    Checking the Gearshift and Throttle Operation
    39
    
    Checking the Tilt System
    40
    
    Checking the Engine Start Switch and Engine Stop Switch/Engine Shut-Off Switch
    40
    
    Checking the Pilot Water Outlet
    40
    
    Test Run
    40
    
    Break-In
    41
    
    After Test Run
    41
Spec Specifications

43
- Specifications
  43
- General Specifications
  
  44
- Maintenance Specifications
  
  48
  - Power Unit
    48
  - Lower Unit
    52
  - Electrical
    52
  - Power Unit
    55
  - Lower Unit
    59
  - Dimensions
    62
- Tightening Torques
  
  72
  - Specified Torques
    72
  - General Torques
    74
Chk Adj/Chk Adj

75
- Chk Adj
  
  76
- Special Service Tools
  
  76
- Periodic Checks and Adjustments
  
  76
- Maintenance Interval Chart
  
  78
- Top Cowling
  
  79
  - Checking the Top Cowling
    79
- Fuel System
  
  79
  - Checking the Fuel Joint and Fuel Hoses (Fuel Joint-To-Carburetor)
    79
  - Checking the Fuel Filter
    80
- Power Unit
  
  80
  - Checking the Engine Oil
    80
  - Replacing the Engine Oil
    80
  - Checking the Timing Belt
    82
  - Replacing the Timing Belt
    82
  - Checking the Valve Clearance
    85
  - Checking the Spark Plugs
    86
  - Checking the Thermostat
    87
  - Checking the Cooling Water Passage
    88
- Control System
  
  88
- Power Trim and Tilt Unit
  
  91
- Lower Unit
  
  92
- General
  
  94
  - Checking the Anodes
    94
  - Checking the Battery
    95
  - Lubrication
    96
Fuel Fuel System

99
- Fuel
  99
- Special Service Tools
  
  100
- Fuel System
  
  100
- Hose Routing
  
  101
  - Fuel and Blowby Hoses
    101
  - Cooling Water Hose
    102
- Fuel Line
  
  104
- Fuel Filter and Fuel Pump
  
  106
  - Checking the Fuel Pump
    108
  - Disassembling the Fuel Pump
    108
  - Checking the Diaphragm and Valves
    109
  - Assembling the Fuel Pump
    109
- Carburetor Unit
  
  110
- Carburetor
  
  116
  - Checking the Carburetor
    118
  - Checking the Prime Start
    119
  - Assembling the Carburetor
    119
  - Adjusting the Throttle Link Rod
    120
  - Adjusting the Pilot Screw
    121
  - Synchronizing the Carburetors
    122
  - Adjusting the Dash-Pot (Acceleration Pump)
    123
Powr Power Unit

126
- Powr
  126
- Troubleshooting
  
  128
- Special Service Tools
  
  137
- Power Unit
  
  138
  - Checking the Compression Pressure
    152
  - Checking the Oil Pressure
    152
  - Removing the Power Unit
    153
- Timing Belt and Sprockets
  
  156
- Cylinder Head
  
  162
  - Removing the Cylinder Head
    166
  - Checking the Valve Springs
    167
  - Checking the Valves
    167
  - Checking the Valve Guides
    168
  - Replacing the Valve Guides
    168
  - Checking the Valve Seat
    169
  - Refacing the Valve Seat
    170
  - Checking the Rocker Arms and Rocker Arm Shaft
    172
  - Checking the Camshaft
    172
  - Checking the Cylinder Head
    173
  - Checking the Oil Pump
    174
  - Installing the Valves
    174
  - Installing the Camshaft
    175
  - Installing the Rocker Arm Assembly
    176
  - Installing the Cylinder Head
    176
- Cylinder Body
  
  178
Lowr Lower Unit

198
- Lowr
  198
- Special Service Tools
  
  200
- Lower Unit (F50/F50A)
  
  206
  - Removing the Lower Unit
    208
- Water Pump and Propeller Shaft Housing (F50/F50A)
  
  210
- Drive Shaft and Lower Case (F50/F50A)
  
  220
  - Removing the Drive Shaft
    222
  - Disassembling the Drive Shaft Assembly
    222
  - Disassembling the Forward Gear
    222
  - Disassembling the Lower Case
    223
  - Checking the Pinion and Forward Gear
    224
  - Checking the Bearings
    224
  - Checking the Drive Shaft
    224
  - Checking the Shift Rod and Shift Cam
    224
  - Checking the Lower Case
    224
  - Assembling the Lower Case
    224
  - Assembling the Forward Gear
    226
  - Assembling the Drive Shaft
    226
  - Installing the Drive Shaft
    227
  - Installing the Lower Unit
    227
- Shimming (F50) (for USA and Canada)
  
  230
  - Shimming
    231
  - Selecting the Pinion Shims
    231
  - Selecting the Forward Gear Shims
    232
  - Selecting the Reverse Gear Shims
    233
- Shimming (F50A) (for Worldwide)
  
  234
  - Shimming
    235
  - Selecting the Pinion Shims
    235
  - Selecting the Forward Gear Shims
    236
  - Selecting the Reverse Gear Shims
    237
- Backlash (F50/F50A)
  
  238
  - Measuring the Forward and Reverse Gear Backlash
    238
- Lower Unit (T50/FT50B, FT50C)
  
  240
  - Removing the Lower Unit
    242
- Water Pump and Shift Rod (T50/FT50B, FT50C)
  
  244
- Propeller Shaft Housing (T50/FT50B, FT50C)
  
  250
- Drive Shaft and Lower Case (T50/FT50B, FT50C)
  
  258
  - Removing the Drive Shaft
    260
  - Disassembling the Drive Shaft
    260
  - Disassembling the Forward Gear
    260
  - Disassembling the Lower Case
    261
  - Checking the Pinion and Forward Gear
    262
  - Checking the Bearings
    262
  - Checking the Drive Shaft
    262
  - Checking the Lower Case
    262
  - Assembling the Lower Case
    262
  - Assembling the Forward Gear
    264
  - Assembling the Drive Shaft
    265
  - Installing the Drive Shaft
    265
  - Installing the Lower Unit
    265
- Shimming (T50) (for USA and Canada)
  
  268
  - Shimming
    269
  - Selecting the Pinion Shims
    269
  - Selecting the Forward Gear Shims
    270
- Shimming (FT50B, FT50C) (for Worldwide)
  
  272
  - Shimming
    273
  - Selecting the Pinion Shims
    273
  - Selecting the Forward Gear Shims
    274
- Backlash (T50/FT50B, FT50C)
  
  276
  - Measuring the Forward and Reverse Gear Backlash
    276
Brkt Bracket Unit

278
- Brkt
  278
- Troubleshooting
  
  280
- Special Service Tools
  
  283
- Tiller Handle (F50/F50A, T50/FT50B)
  
  284
  - Checking the Throttle Cable and Shift Cable
    294
  - Assembling the Tiller Handle
    294
- Tiller Handle (FT50C)
  
  296
- Bottom Cowling
  
  304
  - Checking the Shift Rod Assembly Operation
    308
- Upper Case
  
  310
  - Disassembling the Oil Pan
    318
  - Checking the Oil Strainer and the Relief Valve
    318
  - Assembling the Oil Pan
    318
  - Installing the Upper Case
    320
- Clamp Brackets
  
  322
  - Removing the Clamp Brackets
    324
  - Installing the Clamp Brackets
    324
  - Adjusting the Trim Sensor
    325
- Swivel Bracket and Steering Arm
  
  326
  - Swivel Bracket and Steering Arm
    327
  - Installing the Steering Arm
    328
  - Removing the Steering Arm
    328
- Power Trim and Tilt Unit
  
  330
  - Removing the Power Trim and Tilt/Hydro Tilt
    332
- Tilt Cylinder and Trim Cylinder
  
  334
  - Tilt Cylinder and Trim Cylinder
    335
- Trim Cylinder
  
  336
- Gear Pump
  
  338
  - Disassembling the Tilt Cylinder
    342
    
    Disassembling the Trim Cylinder
    342
    
    Disassembling the Gear Pump
    343
    
    Checking the Tilt Cylinder and Trim Cylinder
    343
    
    Check the Valves
    344
    
    Checking the Filters
    344
    
    Checking the Gear Pump
    345
    
    Assembling the Gear Pump
    345
    
    Assembling the Trim Cylinder
    346
    
    Assembling the Tilt Cylinder
    348
    
    Bleeding the Power Trim and Tilt (Not Installed)
    349
    
    Bleeding the Power Trim and Tilt (Built-In)
    350
- Power Trim and Tilt Motor
  
  352
- Power Trim and Tilt Electrical System
  
  357
Elec Electrical Systems

361
- Elec
  361
- Electrical Systems
  
  362
- Troubleshooting
  
  362
- Special Service Tools
  
  363
- Checking the Electrical Components
  
  365
  - Measuring the Peak Voltage
    365
  - Measuring the Lower Resistance
    365
- Electrical Components
  
  366
  - Starboard and Port Views
    366
  - Front View
    367
  - Top View
    368
  - Tiller Handle Model (F50/F50A, T50/FT50B)
    369
  - Tiller Handle Model (FT50C)
    370
- Wiring Harness
  
  371
- Ignition System and Ignition Control System
  
  372
  - Checking the Ignition Spark Gap
    374
  - Checking the Spark Plug Caps
    375
  - Checking the Ignition Coil
    375
  - Checking the CDI Unit
    376
  - Checking the Charge Coil
    376
  - Checking the Pulser Coil
    377
  - Checking the Pulser Coil Air Gap
    377
  - Checking the Engine Start Switch
    378
  - Checking the Engine Shut-Off Switch
    378
  - Checking the Thermoswitch
    379
  - Checking the Oil Pressure Switch
    379
- Starting System
  
  380
  - Checking the Fuse
    381
  - Checking the Wiring Harness (10 Pins)
    381
  - Checking the Neutral Switch
    381
  - Checking the Starter Relay
    381
- Starter Motor
  
  382
  - Removing the Starter Motor Pinion
    384
  - Checking the Starter Motor Pinion
    384
  - Checking the Armature
    384
  - Checking the Brushes
    385
  - Checking the Starter Motor Operation
    385
- Charging System
  
  386
  - Checking the Lighting Coil
    387
  - Checking the Rectifier Regulator
    387

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Yamaha F50A Owner's Manual

Yamaha F50A Owner's Manual (222 pages)

Brand: Yamaha | Category: Outboard Motor | Size: 2.76 MB

Table of Contents

Yamaha F50A Owner's Manual

Yamaha F50A Owner's Manual (217 pages)

Brand: Yamaha | Category: Outboard Motor | Size: 6.1 MB

Table of Contents

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Yamaha F50A Owner's Manual

Yamaha F50A Owner's Manual (117 pages)

Brand: Yamaha | Category: Outboard Motor | Size: 2.17 MB

Table of Contents

Table of Contents

5
- General Information
  7
- Chapter 1 IDENTIFICATION NUMBERS RECORD
  8
- Outboard Motor Serial Number
  8
  - Key Number
    8
- Emission Control Information
  9
- Safety Information
  11
- Caution Labels
  13
- Important Labels
  13
- Warning Labels
  13
- Basic Boating Rules
  14
- Rules of the Road
  14
- Fueling Instructions
  18
  - Gasoline (Petrol)
    18
  - Operation
    19
- Engine Oil
  20
- Battery Requirement
  21
- Propeller Selection
  21
- Start-In-Gear Protection
  23
E -Memo-

25
- Basic Components
  25
- Chapter 2
  26
- Main Components
  26
- Operations of Controls and Other Functions
  27
  - Fuel Tank
    27
  - Remote Control
    28
  - Trim Tab
    32
  - Power Trim/Tilt Switch
    33
  - Trim Angle Adjusting Rod
    33
  - Digital Tachometer
    34
  - Tilt Support Lever
    37
  - Top Cowling Lock Lever
    37
  - Flushing Device
    37
- Warning System
  38
  - Overheat Warning
    38
  - Low Oil Pressure Warning
    39
E -Memo-

41
- Operation
  41
- Chapter 3 INSTALLATION
  42
- Mounting the Outboard Motor
  43
- Filling Fuel
  45
- Pre-Operation Checks
  46
  - Checking the Engine Oil Level
    47
- Breaking in (Running In) Engine
  48
- Starting Engine
  49
- Warming up Engine
  52
- Shifting
  53
  - Forward
    53
  - Reverse
    53
- Stopping Engine
  54
- Trimming Outboard Motor
  55
  - Adjusting Trim Angle
    56
- Tilting Up/Down
  58
- Cruising in Other Conditions
  60
- Cruising in Salt Water
  60
  - Cruising in Turbid Water
    60
Maintenance

61
- Chapter 4
  62
- Specification Data
  62
- Transporting and Storing Outboard Motor
  64
  - Trailering Outboard Motor
    64
  - Storing Outboard Motor
    65
- Periodic Maintenance
  69
  - Replacement Parts
    69
  - Maintenance Chart
    70
  - Greasing
    71
  - Cleaning and Adjusting Spark Plug
    72
  - Checking Fuel System
    74
  - Inspecting Fuel Filter
    75
  - Adjusting Idling Speed
    77
  - Changing Engine Oil
    78
  - Checking Timing Belt
    80
  - Replacing Fuse
    81
  - Checking Wiring and Connectors
    81
  - Exhaust Leakage
    81
  - Water Leakage
    81
  - Checking Power Trim and Tilt System
    82
  - Checking Propeller
    83
  - Changing Gear Oil
    85
  - Cleaning Fuel Tank
    86
  - Inspecting and Replacing Anode(S)
    88
  - Checking Battery
    89
  - Checking Bolts and Nuts
    92
  - Motor Exterior
    92
  - Cleaning Cooling-Water Passages
    92
  - Coating the Boat Bottom
    93
E -Memo-

95
- Trouble Recovery
  95
- Chapter 5
  96
- Troubleshooting
  96
- Temporary Action in Emergency
  100
  - Impact Damage
    100
  - Power Trim/Tilt will Not Operate
    100
  - Starter will Not Operate
    101
  - Engine Fails to Operate
    103
  - Treatment of Submerged Motor
    104
- Index
  105
  - Propeller Selection
    107

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